The following capture shows Type 1 Ethernet Auto Discover (A-D) route used for Fast Convergence and was taken on PE5. Please note that Ethernet TAG is set to MAX-ET (FFFF:FFF) and MPLS label is the NLRI is set to 0. Extended Community attribute carrying the actual MPLS label is included in the route. Refer to section 8.2.1 of RFC 7432 for more information.

The following Type 1 route is used for Aliasing.
RFC allows per <ESI, Ethernet Tag ID> or per <ESI> advertisements for a given MAC-VRF. MPLS label provided in this advertisement is used for known unicast load-balancing as described in Section 14 of RFC 7432.

The following Wireshark capture of Type 1 route was taken on PE5’s MPLS network-facing interface. Notice the Ethernet Tag value – router is using per <ESI> granularity by setting Ethernet TAG ID to 0. Refer to section 8.4.1 of RFC 7432 for more information.